def create_book(self):
        sons_of_eden = Book()
        sons_of_eden.name = "Filhos do Éden: Paraíso Perdido"
        sons_of_eden.publish_date = datetime.date(2015, 11, 4)
        sons_of_eden.save()

        return sons_of_eden
    def create_classic_book(self):
        lotr = Book()
        lotr.name = "Lord of the Rings"
        lotr.publish_date = datetime.date(1954, 7, 29)
        lotr.save()

        return lotr